how much would front headlight covers cost to replace

Just restore them with the C/V brand kit from advance.....comes in a foil bag or silver box. It requires wet sanding and a three part treatment with the UV protectant being the final application. Takes the haze away and looks good for a long time unless you park in the direct sun frequently then they will wear down again from UV rays. Plastic is petroleum based and the sun is its worst enemy. Any questions....look up Benzmobility and I'll walk you through it.